I only spray water based finishes, the vast majority of which come from Target Coatings. I do occasionally spray some water based acrylic from SW. The last couple of times I've sprayed my clear coats I will periodically get white flecks of paint coming out of the gun, some of them so large that they clog up the nozzle until I open it up a lot more and they get pushed out. I've flushed everything out with water and DNA but I still get the paint flecks. Will running some lacquer thinner through everything dissolve whatever is in there and get me in the clear? No pun intended